Which of the following best reflects the documentation of "abdominal CT scan was reviewed with radiologist; scan showed a small amount of free fluid"?

a. Collection of additional history from patient's family, caretaker, or other source
b. Requesting or obtaining the patient's old medical records
c. Discussion of the results of a diagnostic test with the physician who performed that specific diagnostic test
d. The personal, independent visualization of the radiologic image, tracing, or scan by the physician who is performing the E/M service visit

c) Discussion of the results of a diagnostic test with the physician who performed that specific diagnostic test